The design principle of high flow fuel pump

A high-flow fuel pump is a pump used to overcome the hydraulic resistance of the fuel filter and stably supply the amount of fuel to the high-pressure pump when the filter increases due to dirt. Its flow rate must be at least twice the maximum fuel supply of the engine to ensure that the high-pressure pump can work stably even when the filter is dirty and the resistance is high. A great advantage of a high-flow fuel pump is that it does not increase power itself, but when major engine upgrades are performed, it can increase power by providing a higher fuel flow to the engine.

Design principle of high-flow fuel pump

1. In order to achieve high flow, the power of the motor must be large, and the motor should choose enameled wire with a thick wire diameter and a small number of turns, in order to reduce the motor resistance and increase the motor speed.

2. The motor speed is increased, and the impeller single-turn flow rate is increased (the flow rate output by the impeller when the motor rotates one circle), so as to maximize the single-turn flow rate. The single-turn flow rate is maximized by designing the oil channel and the impeller tooth structure. The single-turn flow rate is the largest, the rotation speed is the largest, and the oil pump flow rate increases.

The role of high-flow fuel pumps

The main function of high-flow fuel pumps is to suck fuel from the fuel tank and deliver it to the engine's fuel injectors at a certain pressure. Specifically, the functions of high-pressure fuel pumps in the fuel system include:

Increasing fuel pressure: The high-pressure fuel pump increases the pressure of the fuel to achieve the effect of high-pressure injection, thereby improving the atomization quality of the fuel, allowing the fuel to be more fully mixed with the air and improving combustion efficiency.

Stabilizing fuel supply: The fuel pump needs to ensure that the engine can obtain a stable and sufficient fuel supply under different working conditions to meet the needs of the engine.

Withstand extreme conditions Since the fuel pump needs to work in high temperature, high pressure and corrosive liquid environments, high-quality fuel pumps are usually made of wear-resistant and corrosion-resistant materials and have good sealing performance.

Establishing fuel pressure: The high-pressure fuel pump cooperates with the fuel pressure regulator to maintain a certain fuel pressure under all working conditions to ensure that the fuel can be continuously and stably delivered to the engine's fuel injectors.

In summary, the high-flow fuel pump plays a vital role in the automotive fuel system. It can not only improve the injection effect and combustion efficiency of the fuel, but also ensure that the engine can obtain a stable and sufficient fuel supply under various working conditions. If you have any questions, comments or concerns regarding high flow fuel pumps or other vehicle performance enhancement modifications, please contact our experts and professionals at OSIAS. We have a wealth of knowledge to help you understand the knowledge related to high flow fuel pumps.